CHEMICAL ENGINEERING | Fuels and Combustion

Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

Byadmin August 17, 2022

Question: Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces
[A].

higher amount of methane.

[B].

lower amount of hydrogen.

[C].

both (a) and (b).

[D].

higher amount of both methane and hydrogen.

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

With increase in temperature, the thermal conductivity of steel

Question: With increase in temperature, the thermal conductivity of steel
[A].

increases
[B].
decreases
[C].
remains unchanged
[D].
increases exponentially

Answer: Option B

Explanation:

No answer description available for this question.

Read More With increase in temperature, the thermal conductivity of steel
CHEMICAL ENGINEERING | Fuels and Combustion

__________ present in coal is not determined in its ultimate analysis.

Question: __________ present in coal is not determined in its ultimate analysis.
[A].

Fixed carbon
[B].
Total carbon
[C].
Hydrogen
[D].
Nitrogen.

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ present in coal is not determined in its ultimate analysis.
CHEMICAL ENGINEERING | Heat Transfer

It is not preferable to use superheated steam in evaporators, because of its very

Question: It is not preferable to use superheated steam in evaporators, because of its very
[A].

high temperature
[B].
high pressure
[C].
low film co-efficient
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More It is not preferable to use superheated steam in evaporators, because of its very
CHEMICAL ENGINEERING | Fuels and Combustion

Deficiency of combustion air during combustion of a gaseous fuel

Question: Deficiency of combustion air during combustion of a gaseous fuel
[A].

lengthens the flame.
[B].
causes heat loss of fuel by its partial combustion.
[C].
both (a) & (b).
[D].
shortens the flame.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Deficiency of combustion air during combustion of a gaseous fuel
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

“When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs”. This phenomenon is related to the

Question: “When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs”. This phenomenon is related to the
[A].

Gibbs-Duhem equation
[B].
Gibbs-Helmholtz equation
[C].
Third law of thermodynamics
[D].
Joule-Thomson effect

Answer: Option D

Explanation:

No answer description available for this question.

Read More “When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs”. This phenomenon is related to the
Fuels and Combustion

Fussain _____________________?

Fussain _____________________?

A. Is friable, charcoal like substance
B. Has highest fixed carbon and lowest volatile matter content of all the four banded components
of coal
C. Is non-coking, but when blended with highly coking coal, controls its swelling and produces
high strength coke on carbonisation
D. All A., B. and C.

Read More Fussain _____________________?

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